text: const electron = require('electron');
  // Module to control application life.
  const app = electron.app;
  // Module to create native browser window.
  const BrowserWindow = electron.BrowserWindow;
  
  const path = require('path');
  const url = require('url');
  const isDev = require('electron-is-dev');
  const windowStateKeeper = require('electron-window-state');
  
  // Keep a global reference of the window object, if you don't, the window will
  // be closed automatically when the JavaScript object is garbage collected.
  let mainWindow;
  
  function createWindow() {
  
    if (isDev) {
      // this breaks VS Code debugging
      //
      // const devtools = require('electron-devtools-installer');
      // const installExtension = devtools.default;
  
      // Promise.all(
      //   [devtools.REACT_PERF]
      //   .map(installExtension)
      // )
      // .then((name) => console.log(`Added Extension:  ${name}`))
      // .catch((err) => console.log('An error occurred: ', err));
  
      const getPath = name => require(name).path;
      BrowserWindow.addDevToolsExtension(getPath('devtron'));
      BrowserWindow.addDevToolsExtension(getPath('electron-react-devtools'));
    }
  
    // Load the previous state with fallback to defaults
    let mainWindowState = windowStateKeeper({
      defaultWidth: 1000,
      defaultHeight: 800
    });
  
    // Create the browser window.
    mainWindow = new BrowserWindow({
      'x': mainWindowState.x,
      'y': mainWindowState.y,
      'width': mainWindowState.width,
      'height': mainWindowState.height
    });
  
    // and load the index.html of the app.
    mainWindow.loadURL(
      isDev ? 'http://localhost:3000'
        : `file://${path.join(__dirname, '../build/index.html')}`
    );
  
    // Let us register listeners on the window, so we can update the state
    // automatically (the listeners will be removed when the window is closed)
    // and restore the maximized or full screen state
    mainWindowState.manage(mainWindow);
  
    // Open the DevTools.
    // mainWindow.webContents.openDevTools();
  
    // Emitted when the window is closed.
    mainWindow.on('closed', function () {
      // Dereference the window object, usually you would store windows
      // in an array if your app supports multi windows, this is the time
      // when you should delete the corresponding element.
      mainWindow = null
    })
  }
  
  // This method will be called when Electron has finished
  // initialization and is ready to create browser windows.
  // Some APIs can only be used after this event occurs.
  app.on('ready', createWindow);
  
  // Quit when all windows are closed.
  app.on('window-all-closed', function () {
    // On OS X it is common for applications and their menu bar
    // to stay active until the user quits explicitly with Cmd + Q
    if (process.platform !== 'darwin') {
      app.quit()
    }
  });
  
  app.on('activate', function () {
    // On OS X it's common to re-create a window in the app when the
    // dock icon is clicked and there are no other windows open.
    if (mainWindow === null) {
      createWindow()
    }
  });
  
  // In this file you can include the rest of your app's specific main process
  // code. You can also put them in separate files and require them here.
  